It is often required to switch electrical appliances from a distance without being a direct line of sight between the transmitter and receiver. As you may well know, an RF based wireless remote ...

Recently, I picked up a cheap, two-channel RF remote control switch from eBay, and once I completed a demo project with it, I decided to do what I do with all of my electronics: take it apart! The ...

With this circuit, a single transmitter and simple set of user pushbuttons can initiate one of four different outputs, two at each of two remote receivers with very different applications. The ...

Most remote controls on TV sets, DVD players, audio systems, and other consumer equipment use infrared (IR) technology, just as they have for decades. But while IR still works well, it’s showing its ...